The DF3R3-674M72 from Innertron is a Band Pass Filter with Frequency 638 to 710 MHz, Bandwidth 72 MHz, Center Frequency 674 MHz, Insertion Loss 2.5 dB, Rejection 20 to 30 dB@ 524 to 824 MHz. Tags: Surface Mount. More details for DF3R3-674M72 can be seen below.